Torque Convertors

[reknapp52]

I'm putting a motor together that will have a slightly radical idle, and I know that it can cause issues when running an automatic transmission. To help alleviate some of the problem I want to install a convertor with a slightly higher stall speed than the stock convertor. I'm thinking something that will stall around 2500-3000 RPM. What problems might that create that I haven't considered?? Convertor slippage when driving on the highway?? I'll have 3.91 rear gears.

 

[496 polara]

If you get a custom converter built for your specs then slippage shouldn't be an issue. A cheaper off the shelf unit then it is possible.
Other than having a good transmission cooler you should be ok.

 

[remytherat]

slightly radical

oxymoron? jumbo shrimp?


elaborate on what your cam specs and intended use are. and a quick search will reveal the dozens of threads on this topic.

 

[Demonstrator]

I'm putting a motor together that will have a slightly radical idle, and I know that it can cause issues when running an automatic transmission. To help alleviate some of the problem I want to install a convertor with a slightly higher stall speed than the stock convertor. I'm thinking something that will stall around 2500-3000 RPM. What problems might that create that I haven't considered?? Convertor slippage when driving on the highway?? I'll have 3.91 rear gears.

You are about where I am.... Mine is about 3400 and does ok on the road. Your mileage may vary.

 

[junkyardhero]

with a 3.91 gear i wouldn't really worry about being under 2500 for any amount of time really...

get a good 3K unit and ship it.